Radius and Ulna.
Those are the long bones that together form the forearm.
The external bone is the radius, and the inside bone is the ulna, they are joint by its extremes.
The humerus is the bone that forms the arm.
Carpus is a conjunction of bones that form the wrist.
Answer: Earth will always be the most accessible habitable planet for study. Consequently, studying the origin and earliest evolution of life, along with the long-term evolution of the Earth's environments, helps us understand why the Earth became habitable and why terrestrial life has persisted for billions of years.
Answer: The answer is fungus- like protist
Explanation: